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What is an index in SQL?
...refman/5.0/en/mysql-indexes.html
An index can be used to efficiently find all rows matching some column in your query and then walk through only that subset of the table to find exact matches. If you don't have indexes on any column in the WHERE clause, the SQL server has to walk through the whole ...
JavaScript - Replace all commas in a string [duplicate]
...a.k.a. "global search"). The algorithm is simple: regular expression finds ALL matches (here commas) in the given string. More information about regular expressions in JavaScript you can find in MDN.
– VisioN
Nov 5 '15 at 8:37
...
Output data from all columns in a dataframe in pandas [duplicate]
...ramdata.values isn't a good solution, because probably numpy will not show all too (depending on the size) and the index information is lost.
– bmu
Jul 22 '12 at 15:46
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Insert a commit before the root commit in Git?
...nd:
git checkout --orphan newroot
git rm -rf .
git clean -fd
git commit --allow-empty -m 'root commit'
Note that on very old versions of Git that lack the --orphan switch to checkout, you have to replace the first line with this:
git symbolic-ref HEAD refs/heads/newroot
2. Rewrite history to s...
Total size of the contents of all the files in a directory [closed]
... @Arkady I have tried your solution on CentOS and Ubuntu, and there is a small error. You want "du -sbh". The "-h" flag must come last.
– theJollySin
Oct 16 '15 at 22:49
...
How can I properly handle 404 in ASP.NET MVC?
...S7 getting in the middle
Response.TrySkipIisCustomErrors = true;
// Call target Controller and pass the routeData.
IController errorController = new ErrorController();
errorController.Execute(new RequestContext(
new HttpContextWrapper(Context), routeData));
}
...
How do I 'svn add' all unversioned files to SVN?
I'm looking for a good way to automatically 'svn add' all unversioned files in a working copy to my SVN repository.
19 An...
How to delete all files and folders in a directory?
Using C#, how can I delete all files and folders from a directory, but still keep the root directory?
29 Answers
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How does Java Garbage Collection work with Circular References?
... method that prints out a unique id for the object. You'll be able to see all the objects that reference each other get collected.
– Bill the Lizard
Dec 15 '09 at 20:45
4
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How to change language of app when user selects language?
...ange in language. The locale you applied will not be changed until you manually change it again.
public void setLocale(String lang) {
Locale myLocale = new Locale(lang);
Resources res = getResources();
DisplayMetrics dm = res.getDisplayMetrics();
Configuration conf = res.getConf...